The universe seems neither benign nor hostile, merely indifferent.
CARL SAGANOur species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.
More Carl Sagan Quotes
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Extraordinary claims require extraordinary evidence.
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Science is a way of thinking much more than it is a body of knowledge.
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One of the great commandments of science is: Mistrust arguments from authority.
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The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.
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If we continue to accumulate only power and not wisdom, we will surely destroy ourselves.
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Science is a way to not fool ourselves.
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Not explaining science seems to me perverse. When you’re in love, you want to tell the world.
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Better the hard truth, I say, than the comforting fantasy.
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Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.
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If it can be destroyed by the truth, it deserves to be destroyed by the truth.
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Writing is the greatest of human inventions, binding together people, citizens of distant epochs, who never knew one another.
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The visions we offer our children shape the future.
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An atheist is someone who is certain that God does not exist, someone who has compelling evidence against the existence of God.
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Books are like seeds. They can lie dormant for centuries and then flower in the most unpromising soil.
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We live in a vast and awesome universe in which, daily, suns are made and worlds destroyed, where humanity clings to an obscure clod of rock.
CARL SAGAN